PHP 二维数组排序

php代码

/** * @package 二维数组排序 * @version $Id: FunctionsMain.inc.php,v 1.32 2005/09/24 11:38:37 wwccss Exp $ * * * Sort an two-dimension array by some level two items use array_multisort() function. * * sysSortArray($Array,"Key1","SORT_ASC","SORT_RETULAR","Key2"……) * @author Chunsheng Wang  * @param array $ArrayData the array to sort. * @param string $KeyName1 the first item to sort by. * @param string $SortOrder1 the order to sort by("SORT_ASC"|"SORT_DESC") * @param string $SortType1 the sort type("SORT_REGULAR"|"SORT_NUMERIC"|"SORT_STRING") * @return array sorted array. */ function sysSortArray($ArrayData,$KeyName1,$SortOrder1 = "SORT_ASC",$SortType1 = "SORT_REGULAR") { if(!is_array($ArrayData)) { return $ArrayData; } // Get args number. $ArgCount = func_num_args(); // Get keys to sort by and put them to SortRule array. for($I = 1;$I < $ArgCount;$I ++) { $Arg = func_get_arg($I); if(!eregi("SORT",$Arg)) { $KeyNameList[] = $Arg; $SortRule[] = '$'.$Arg; } else { $SortRule[] = $Arg; } } // Get the values according to the keys and put them to array. foreach($ArrayData AS $Key => $Info) { foreach($KeyNameList AS $KeyName) { ${$KeyName}[$Key] = $Info[$KeyName]; } } // Create the eval string and eval it. $EvalString = 'array_multisort('.join(",",$SortRule).',$ArrayData);'; eval ($EvalString); return $ArrayData; }